Improvement in studs and buttons



J. B. & W. BENNETT.

STUDS AND BUTTONS. No.171,644. Patented Jan.4,1876.

' WITNESSES: INVEN'WIQ:

MPEIERS. FHOTO-LITNOGRAPHER. WASHXNGTON. D

UNITED STATES PATENT OFEIcE,

JOHN B. BENNETT AND WALTER BENNETT, OF HALIFAX, CANADA.

IMPROVEMENT IN STUDS AND BUTTONS.

Specification forming part of Letters Patent No. 171,644, dated January4, 1876; application filed September 4, 1875.

To all whom it may concern Be it known that we, JoHN B. BENNETT andWALTER BENNETT, ofHalifzix, in the county of Halifax, Province of NovaScotia and Dominion of Canada, have invented a new and usefulImprovement in Studs, of which the following is a specification:

Figure 1 is a side view of our improved comprising a head having arecess in its under side; a stem, provided with a pin attached to saidhead; and a back disk provided with a tube having a horizontal flange onits upper end, which enters the recess in the buttonhead, the flange andtube being'slotted for the reception of the pin on the stem, whichserves to lock the two parts together.

A represents the head or outer plate of the stud, upon the center of thelower or inner side of which is formed, or to it is attached, a stem, B,to which, near its upper end,is attached a pin, 1), and the lower partof which is turned down or made smaller than its upper part.

I A recess, a, is formed in the lower side of the button-head, and thestem B extends from the center of said recess. 0 is the base or innerplate of the stud, upon the center of which is formed a tube, D, of alength equal to the length of the stem B, and the cavity of which is ofsuch a size as to receive and fit upon the said pin 11. Onv the upperend of the tube D is formed a horizontal flange, 0, made sufficientlylarge to enter the recess in the button-head.

A slot made in the flange and upper portion of the tube D passes downvertically, turns to one side horizontally, and again passes upvertically nearly to the end of the tube, the said slot being thus madewith two right angles.

The slot d of thetube 1) is designed to resaid stem resting againsttheupper end of the said spring E.

In attaching the stud the stem B is passed into the tube D, and presseddown until the pin 1) reaches the horizontal part of the slot d. t Thestem B is then turned until the pin 1 reaches the end of the saidhorizontal part of the slot, when it is released, and the elas-' ticityof the spring E'forces the said pin into the second or inner verticalpart of said slot, and holds it there securely. The stud is detached byreversing this operation.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1 The combination of the head A, having arecess, a, stem B, and pin 1), with the back plate 0, provided with atubular shank, D,

having a flange, c, and a right-angled slot, 61,

at its upper end, all constructed and applied as herein set forth, forthe purpose set forth.

JNO. BENJAMIN BENNETT.

WALTER BENNETT.

